I have a problem with one of .deh patches. I'm running this mod under ZDoom 1.22, and it works fine. Nice job.
Anyway, this afore-mentioned .deh patch has an assault rifle replacement for the chaingun. Whenever I bring out the gun, the Doomguy brings it up, then the gun sprite starts to flash and disappears altogether. Huh?

I've come to the conclusion that:
ICD-Z1.DEH - Awesome. Only complaints are weapons #5 (which a grenade blows up directly in front of you...kinda stupid). And The shooting animation for gun #7. Overall very nice.
The other .DEH file is worse, however. Any chance you could fix gun #7 in the first one?

Make the health potion, armour helmet, green armour and blue armour only have one frame each. This'll give you eight extra frames to play around with, and most players will hardly notice the difference :)